title: Foreword.
authors.affiliation: Faculty of Health and Occupational Studies, University of Gävle , Gävle , Sweden.
authors.forename: Nader
authors.initials: N
authors.lastname: Ahmadi
mesh_terms: D006293:Health Promotion; D006801:Humans; D019966:Substance-Related Disorders / Q000517:prevention & control*; D017132:Workplace